Hayward H250FDP Support and Manuals
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Universal H Series Troubleshooting Guide - Page 3
..." or "SB" Code 8. "HF" Code
44-45
11. "AO" Code
58-60
Heat Exchanger: Flow requirements
61
Heat Exchanger: Inspection
62
Heat Exchanger: Potential Failure Causes 63
UHS Wiring Schematic
64
UHS Wiring Diagram
65
3 "PF" Code
Pg. 18-64 38-39 40-41 42-43
10. "IF" Code
52-55
13. "BD" Code
34-35
6. "SF" or "HS" Code 9. Heater not powering up...
Universal H Series Troubleshooting Guide - Page 20
...FDXLBKP1932 *FDXLBKP1932 Display/Bezel/Keypad Assy. Troubleshooting Part Numbers
The following outlines the various replacement parts required for this troubleshooting guide.
* Heaters made prior to 07/16 that want the new display/bezel/keypad, will need to replace the old display with the Kit-Bezel Control Panel specific to their model heater.
Part Number: Part Number:
(H150-H400)
(H500...
Universal H Series Troubleshooting Guide - Page 27
...
Is resistance
YES
correct?
NO
Is transformer YES
wiring damaged, pinched, or worn?
NO
Install correct plug and
replace fuse
YES
Did this correct the
problem?
NO
Correct/repair transformer
wiring
Contact Support (908) 355-7995
Replace transformer: IDXL2TRF1930
27 Open FC1 &/or F2 Fuse
Open FC1 &/or F2 Fuse
Problem solved
Correct voltage YES
selector plug? 2.
Universal H Series Troubleshooting Guide - Page 36
Service LED ON: "EE" OR "CE" Code
"EE" OR "CE" Code
Check display for "EE" code
Is "EE" code YES
present?
NO
Check display ribbon cable connection
Secure connections
& retest
Problem solved
Contact Support (908) 355-7995
NO
Replace ICB: FDXLICB1930
Problem solved
Did "CE" code YES
clear?
NO
Section B
Replace ICB: FDXLICB1930
YES Did the "CE"
code clear? NO
Replace display/...
Universal H Series Troubleshooting Guide - Page 40
... thermistor, checking each red to
YES
black, do the readings
differ by more than 1°?
Replace ICB: FDXLICB1930
Make sure water inlet & outlet are
YES
plumbed correctly,
are they reversed? NO
Replace ICB: FDXLICB1930
Replace thermistor: FDXLTER1930
40
Is "SF" code present? 8.
NO
Replace thermistor: FDXLTER1930
Plumb correctly in compliance with installation manual
Universal H Series Troubleshooting Guide - Page 51
... exhaust gas limit switch. IF open, replace switch (pg. 20). IF switch does not exist AND problem still persists, contact support: (908) 355-7995
51 Once the switch has tripped then it NEEDS to be replaced and the heat exchanger should be inspected for soot or damage. Service LED ON: "LO" Code (cont.)
Note: This switch is a one...
Universal H Series Troubleshooting Guide - Page 53
Service LED ON: "IF" Code
Section B (continued from previous page)
Is correct flame YES
sensor installed OR damaged?
NO
Contact tech support:
(908) 355-7995
53 NO
Inspect and/or clean burner tubes
& orifices
Replace with new burner kit: FDXLBRN1930 OR Gas Valve
(includes orifices): (pg. 20)
YES Are burner tubes &
orifices damaged?
12.
NO
Replace flame...
Universal H Series Troubleshooting Guide - Page 58
...? NO
Install correct plug and
replace fuse
Replace blower vacuum switch: FDXLBVS1930
Replace ICB: FDXLICB1930
58
Replace vacuum tubing: IDXL2SNT1930
Ohm out blower for 4-5ohms
(after Sept. 2010), is
voltage present?
NO
section B
YES
Verify 110-125VAC on Inducer off ICB between
pins 1-2 (left to right), is
resistance correct?
Service LED ON: "AO" Code
"AO" Code
Replace blower...
Universal H Series Troubleshooting Guide - Page 61
... such as the heater dry firing or water to boil causing high limits to trip and possible damage to insure proper operation. Heat Exchanger: Flow Requirements
Flow requirements should be inspected periodically as damage to the heat exchanger by -pass should be the cause of low or
high water flow through the exchanger
Model
Min GPM
H150FD...
Universal H Series Troubleshooting Guide - Page 62
... outlet) 5. Remove (8) ½" hex head bolts ( 4 on each pair of the heat exchanger tubes. 6. Remove water manifold (also called the "Header") and black polymer
"Mounting Blocks" to expose the ends of tubes (inlet side and outlet side), as well as to your local technical representative, or call (908) 355-7995 for further instructions.
UHS Heater - How To Guide - Page 5
... screws).
5
Remove the screws as shown (6 screws) and remove the flue cover jacket.
How To: Rotate UHS Heat Exchanger
Remember, the header does not need to be reversed once the procedure is completed. Also, the inlet and outlet on both sides of the heater (4 screws, look for the triangles
showing the screw location).
UHS Heater - How To Guide - Page 6
... the top high
limit switch. Step 7
Remove the flue collector side panels (3 screws each) Be careful to not damage the
insulation. How To: Rotate UHS Heat Exchanger (cont.)
Step 5
Step 6
Remove the rain guard (8 screws as shown).
Pull wires back through hole.
UHS Heater - How To Guide - Page 7
Cut the wire tie inside the
heater as you lower the exchanger back into the heater cabinet. Step 12
Lift and rotate the heat exchanger to the left side of the heater to not damage the insulation as shown. Step 11
Pull the Thermistor wire out of heater. Route the RED and VIOLET wires through the hole on...
UHS Heater - How To Guide - Page 8
... removed. Be careful to make sure there are no loose connections.
8
Reattach all wires to not pinch
any wires during reinstallation. How To: Rotate UHS Heat Exchanger (cont.)
Step 13
Step 14
Route the Thermistor lead back into the cabinet.
UHS Heater - How To Guide - Page 9
Disconnect Unions from plumbing (water connections, 1 inlet, 1 outlet).
9 Step 3
Remove water connection side Upper End Cap (Black Polymer- 4 screws in rectangle holes marked with an arrow). How To: Heat Exchanger Inspection
Step 1
Step 2
Remove the black metal trim plate (around the water manifold, 5 Black screws).
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